pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9238-MILLER.ps) >>/Users/jc/w/tmp/Tune-9238-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/Miller/MILLER(12-4-2016).ABC

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_92388.log 139782 Log file, useful mostly for debugging
Find_92381.log 1403 Log file, useful mostly for debugging
Form_92382.log 819 Log file, useful mostly for debugging
Form_92384.log 849 Log file, useful mostly for debugging
Form_92388.log 826 Log file, useful mostly for debugging
Tune-9238-MILLER.abc 382 ABC music file with the extracted tune(s)
Tune-9238-MILLER.ps 35504 PostScript
Tune-9238-MILLER.txt 382 Plain-text file with the extracted tune(s)
Tune-9238-get.log 4348 Log file, useful mostly for debugging
Tune-92382-get.log 1614 Log file, useful mostly for debugging
Tune-92384-get.log 2778 Log file, useful mostly for debugging
Tune-92385-get.log 3679 Log file, useful mostly for debugging
Tune-92386-get.log 3190 Log file, useful mostly for debugging
Tune-92387-get.log 3032 Log file, useful mostly for debugging
These files should be available for 24 hours.